Milk-can.



E. KNIG.

MILK GAN.

'APPLICATION FILED 0031.23, 1911.

19519121, Patenjsed Jan.21,1913.

fzf

f1 l f i-5 T gb $2 di a MUZ j;

ing the tap,

ERICH KNIG, OF GROSSHESSLOHE, NEAR GESELLSCHAFT FR HYGIENISCHE BAVARIA, GERMANY.

MUNICH, GERMANY, ASSIGNOR T0 KUCHLER- MILCHVERSORGUNG M. B. H., OF MUNICH,

MILK-CAN.

Specification of Letters Patent. i Application 1aed october-aaien.

Patented Jan. 21, 1913. semi No. 656,268.

sel, and the invention particularly consists of means for stirring the milk every time a quantity of it is drawn, in connection with a tap and operating valve therefor,

parts, leaking `and rattling, is .effectively prevented, the operative parts being so constructed and arranged, that they can readlly be removed from the can for cleaning and repairing-or; the like purposes.

In order to make 'my invention more readily understood, I will now describe 1t with reference to the accompanying drawings, in whichy .Figure 1 represents' a sectional elevation through one construction of can, embodying my invention. Fig. 2 shows a fragmentary section through another form of construction.

Like parts are denoted by like letters of reference.

Referring first to Fig. 1, the can A carries on its raised bottom B the seat portion c2 for the valve plug c, running out into the curved discharge tube c into which the tap (not shown) is to be screwed. In the lower part of the plug is provided a safety valve d,- in t-he form of a wing-diaphragm, which prevents any fraudulent introduction of foreign matter from below through the opened valve c into the once sealed can. The valve plug is secured to the lower end of the stirrer rod a, which carries stirring vanes b, so constructed that they readily pass through the restricted neck g of the can and that the stirring action of the upper vane is opposed tothat of the lower one. The shape of the vanes, furthermore, is such that, upon the stirrer rod being turned backward for closonly a very slight stirring actlon is produced. The reduced upper end of the rod o' is guided in a nut or perforated rectly from it," without first pouring them into another vesthe results ofl wearing down of the valveseat portion el cap z', which screws into the bushing 1 secured to t-he cover fl' A compression spring e is interposed between the neck of the rod a and the nut z', whereby upon the cover being put-on the wear and the play of the valve parts is counteracted, so that rattling and leaking is prevented. The nut z` is sealed together with the rod a to the bushing f1 during shipping. The vanes of the stirrer are so disposed on the rod a relative to the valve plug, that, on rotating the rod by means of a wrench' Z V(Fig. 2) fitting the.` countersunk head f2,

tain stirring operation. Stop means c3 pre vent the parts from being rotated too far.

Inithe construction shown in Fig. 2, the of the disk-valve c4 consists of more or less elastic material, suchl as hard rubber, caoutchouc or the like, and the stirrer rod Yaf, .is screwed at l into a socket 2 provided in the cover f of the can, so that, upon rot-ation of the rod by means of the wrench Z, the valve is opened or closed respectively. The means for coupling rod and valve disk together, which. preferably consists of a cotter or split pin es'inserted through the respective parts, that the valve will open only after the stirrer has come into operation.

the passages of-the valve register only after the vanes have performed a cer# is so disposed,

already with reference to Fig. l.

In both constructions shown and described, there are provided in the upper end of the stirrer rod nd the respective cover parts, air passages h1, which are placed into or out of communication with one ann Sti other, according to the position of the valve.

What I claim 1s 1. In a milk can, the combination of a re- 'ceptacle for the liquid, a. cover thereto, a discharge port in said receptacle, a rotary valve cont-rolling said port, means in connection with said valve for preventing tampering with the contents in said receptacle, a stirrer operatively connected below to said valve and above journaled in said cover, means for admitting air into said receptacle during discharge of liquid, and means for rotating said valve through a limited distance only.

2. In a milk can the combination of a supply receptacle, a cover thereto and a discharge port v therein, a tampering-proof valve controllingsaid port, a stirrer in said receptacle comprising a rod and venes los thereon, means operatively connecting said l by said stirrer rod; and means for admittin stirrer rod and said valve in such manner air intothe can in the ,open position o 15 that thevfformer operates somewhat prior to .said valve, said parts being so interconnected the latter, and means for elastically jour` that the stirrer is operated before the pas- 5 naling said stirrer in said cover. sages in the valve register,` substantially as 3. In a milk-can, the combination with a set forth.' y cover and a discharge port in the bottom of In testimony whereof I-.ailix my signature 2o ihycan, of si., stirre'r rod, vamfas thereorbof in presence of two Witnesses. i erent inc inations, means or rotat l 10 journaling said stirrer in said. cover, means ERICH :KLQNI-G s f for limiting its rotary movement, and means Witnesses:

for operating it from Without; a. valve on- A- RICHARD LEMP, trolling said discharge port and-actuated ARTHUR O. W. COYER. 

